高中英语 Unit16 Scientists at work课件 人教版 课件.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Unit16 Scientists at work,Period 2,Franklins famous kite experiment,Step 1 Leading in,Throughout history,scientists have played a big role in peoples lives and now they still do！Do you know who the following scientists are?There are some mysterious scientists.Ill tell you what each scientist is best known for and you should tell me who it is.,Charles Darwin,Who am I?,I studied plants and animals while sailing around the world.I wrote a book on how plants are different from each other and animals are different from each other.The book talks about how plants and animals change over many,many years to suit the environment they live in.,My husband and I both believed that science was the most important part of our lives.We discussed our work and the latest scientific events,such as the discovery of X-rays.In 1898,we found two new elements that gave off radiation.We named these two elements polonium and radium.,Who am I?,Madam Curie,I am an inventor.I liked to invent things.Of course I did many experiments.Though I failed many times and people laughed at me,I succeeded at last.I invented the lamp.,Thomas Edison,I am an inventor.I did many experiments.,Once I flied a kite in bad weather with,lightning.I wanted to show people that,lightning and electricity are the same.,It was a little dangerous,but I succeeded.,I invented the lightning rod which,protected buildings and ships from,lightning damage,.,Benjamin Franklin,How much do you know about,Benjamin,Franklin,?,crack,Franklin was nearly killed by lightning.,How much do you know about,Benjamin Franklin?,He first saw himself in print at age 16.,He taught himself to read French,Spanish,Latin,and Italian.,He was over 45 when he did the,experiments in electricity.,At his death in 1790,he was buried in,Christ Church Burial Ground.,Step3.Listen to the tape and fill in the blanks,.,1,.Benjamin Franklin,a number of experiments in which he showed what electricity is.,2,.The string was getting,！,3,.Most kites are made of paper,but a kite made of silk will not-,so soon in weather with rain and strong winds.,4,.Build the frame of the kite by making a small _,of two pieces of light wood.,5,.Add a tail to the frame and,a long string to the cross so you can control the kite.,6,.First,fix a very,piece of metal,pointing a foot or more above the frame,to the top of the longer stick of the cross.,7,.This ribbon,which must not get wet,will,you,_,the electricity.,conducted,charged,tear,cross,tie,sharp,protect,from,Step4.Fast reading,Read the following statements and decide if they are true or false.,1.In 1752 scientists already knew what lightning is.2.Franklin was helped by a friend to do the experiment.(),3.Franklin made the kite of silk because wet silk does not conduct electricity.4.A condenser was used in the experiment to store electricity.,5.The key tied to the string was put into the door to stop the kite from flying away.,F,F,F,T,F,Step5 Intensive reading.,Read this passage aloud and fill in the form according to it.,Franklins famous kite experiment,when,who,When/do,Why/do,(aims),4 factors:,3 steps:,Results:,Proved the idea,June,1752,a kite,a key,some bad weather,a condenser,Franklin and his son,thunderstorm,rainy day,bad weather,to prove that lighting and electricity are the same,First,Second,Third,Answer the following questions.,Why did Benjamin Franklin do this experiment with the kite?,2.,Why is it better to make the kite of silk than of paper?,3.,Do you think Franklins experiment was dangerous?,Exlpain,.,He wanted to show that lightning and,electricity are the same thing.,Because a kite made of silk will not tear,so soon as a kite made of paper in bad,weather with rain and strong winds.,Yes.Franklins experiment was very,dangerous because if something went,wrong he would be killed by the lightning.,Language study,Word study,Charge 3,1,修,我的,CD,机你要收多少钱？,2,受惊的动物冲进了商店。,3,让我的手机充满电通常需要花费一个小时。,Conduct2,1,导游带领游客参观了博物馆。,2,这种材料传电或热的效果怎么样？,3,星期六晚上的音乐会将会有一位世界著 名的指挥家来指挥。,Cross1,1,看到数学作业本上有如此多的,，他很吃惊。,2,她颈上戴着一个十字架。,3,这河太深而不能穿过。,Sharp 2,1,瞎了的动物依靠它们敏锐的嗅觉也能够存活。,2,这刀切肉还不够锋利。,3,我感到胃里一阵剧烈的疼痛。,Tear 1,1,不要那么用力的扯这块布，,它很容易（被）撕破。,2,他们正在拆除这些旧房子以建新的。,3,他看见那个漂亮的女孩在哭泣。,Tie 3,1,每个队进了一球，比赛以平局告终。,2,你的新领带配你的蓝外套真是好极了。,3,这个两岁的小女孩正在学习怎样系鞋带。,Grammar,1 football,2 shoestring/shoelace,3 ice cream,4 green house,5 downtown,6 seafood,3 steps,a.Fix a very sharp piece of metal,b.Fasten a key to the end of the,long string,c.Tie a silk ribbon to the dry string.,